EMF
Definition
EMF stands for electromotive force, and it refers to the voltage or potential difference generated by a source such as a battery or generator. It represents the work done per unit charge when moving from one point to another within an electric circuit.
Analogy
Imagine EMF as a push from behind that helps you climb up a hill. Just like how this external force assists your movement against gravity, EMF provides energy to charges and helps them move through a circuit.
Related terms
Voltage: Also known as electric potential difference, it is the measure of potential energy per unit charge between two points in an electric circuit.
Internal Resistance: The inherent resistance within a source (such as a battery) that reduces its terminal voltage under load.
Faraday's Law of Electromagnetic Induction: States that changing magnetic fields induce an electromotive force (EMF) and thus generate currents.
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